# HG changeset patch
# User Siddharth Agarwal <sid0@fb.com>
# Date 2012-12-06 19:21:11
# Node ID 1471f5e83686107c8ebbbec47d05d3fbda40959f
# Parent  0e4316c3a70389b4ff318fac1f2416535a370ff5

perf: add a command to measure revset performance

diff --git a/contrib/perf.py b/contrib/perf.py
--- a/contrib/perf.py
+++ b/contrib/perf.py
@@ -228,6 +228,11 @@ def perfrevlog(ui, repo, file_, **opts):
 
     timer(d)
 
+def perfrevset(ui, repo, expr):
+    def d():
+        repo.revs(expr)
+    timer(d)
+
 cmdtable = {
     'perfcca': (perfcca, []),
     'perffncacheload': (perffncacheload, []),
@@ -258,4 +263,5 @@ cmdtable = {
     'perfrevlog': (perfrevlog,
                    [('d', 'dist', 100, 'distance between the revisions')],
                    "[INDEXFILE]"),
+    'perfrevset': (perfrevset, [], "REVSET")
 }